二丙基酮

The oxidation of C=C double bond in 4-isopropylideneC〓-trishomocubane-8, 11-dione was studied. Ozonolysis of that double bond was arrived and the ozonide was found much more stable than ordinary ozonides.

详细研究了4—异亚丙基—C〓—三高立方烷—8，11—二酮中碳—碳双键的氧化反应，实现了双键的臭氧化分解，并发现其臭氧化物具有不寻常的稳定性。

2-Substituted-3,4-dihydro-1(2H)-isoquinolinones were synthesized from methyl 3-hydroxy-ben- zoates via allyl etherification, Claisen rearrangement, oxidation, reductive amination and aminolysis for the first time.

以3-羟基-4-甲氧基苯甲酸甲酯等为原料，通过烯丙基醚化、Claisen重排、氧化、与伯胺反应、还原、分子内酯的胺解六步反应合成了一系列2-取代-3，4-二氢-1-异喹啉酮类化合物。

Ingredients: water,decyl glucoside,glycerin,sodium cocoamphodiacetate,sodium pca,polysorbate-20,cocamidopropyl betaine,carya illinoensis powder,panthenol,carbomer,aloe barbadensis leaf juice,lavandula angustifolia oil,perfume,tetrasodium edta,lactic acid.

主要成份：去离子水，葵基葡聚糖，甘油，椰油两性二醋酸二钠，吡咯烷酮羧酸钠，聚山梨醇酯-20 ，椰油酰胺丙基甜菜碱，核桃粉，泛醇，卡波姆，芦荟叶萃取物，薰衣草精油，香精，乙二胺四乙酸四钠，乳酸。

A reversed-phase high performance liquid chromatographic method was established for determination of isothiocyanates in human urine , which used the reaction of propyl isothiocyanate with 1,2-benzenedithiol as reference instead of the synthesis of 1,3-benzodithiole-2-thione.

省去合成1，3 苯二硫杂环五烯 2 硫酮这一步骤，直接用异硫氰酸丙基酯与1，2 苯二硫酚反应作标准，建立了尿液中异硫氰酸酯的反相高效液相色谱测定方法。

The results indicated isoprene was soon consumed under the condition of excess ozone. During the reaction, the major carbonyl products formed were methyl vinyl ketone, methacrolein, methylglyoxal, and formaldehyde. Formic acid, CO and CO2 were also among the products.

在反应温度(294±2)K，压力为1.01×10^5Pa空气，O3过量的条件下，异戊二烯很快反应完全，反应中生成的羰基产物主要包括甲基丙烯醛、甲基乙烯基酮、丙酮醛和甲醛；产物中还包括甲酸、一氧化碳和二氧化碳。

A new method for the synthesis of 1 methyl 3 propyl pyrazol e 5 carboxlic acid from 2 pentanone and diethyl oxalate is reported.

以 2 -戊酮和草酸二乙酯为起始原料，经缩合、与甲基肼环合、水解等三个步骤合成了 1 -甲基-3-丙基吡唑-5 -羧酸。

Promoted by metal dysprosium, aldehydes and ketones could react smoothly with propargyl bromide to afford the corresponding homopropargylic alcohol s in good to excellent yields, and no allenic alcohols were found.

在金属镝的促进下，醛、酮可与炔丙基溴反应，高选择性高产率地得到相应的高炔丙醇，没有发现连二烯醇的存在。

Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.

第三章(来源：73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱，使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合，以较高的产率合成出10种目标化合物：2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2，4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2，4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮，经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征，10种目标产物均未见文(来源：ABC论文cccccc网www.abclunwen.com)献报道。

The chlorin e6 7 and chiorin 11 were oxidized further with osmium oxide in the same oxidization condition to yield bateriochlorin 8 and 12, respectively.

卟吩醛2在碱性条件下转化为卟吩e6三甲酯7，2与烷基溴化镁的格氏反应给出脱镁叶绿酸醇9，选择高钌酸四丙基铵和N-甲基吗啉N-氧化物将3-位羟基氧化成羰基，所生成的卟吩二酮10在酸性条件下脱去甲酸甲酯生成焦脱镁叶绿酸衍生物11，用四氧化锇对7和11实施氧化，则分别转化为细菌卟吩衍生物8和12。

L-Phenylalanine was then obtained by alkylation of N- glycine ethyl ester with benzyl bromide in the presence of an asymmetric phase-transfer catalyst-N-benzyl-cinchonine chloride, followed by hydrolysis of the resulting product.

以甘氨酸乙酯盐酸盐和二苯甲酮为起始原料合成了N-二苯亚甲氨基乙酸乙酯，后者在手性相转移催化剂-N-苄基氯化辛可宁诱导下与烷基化试剂溴化苄发生不对称相转移催化烷基化反应，水解得到L-苯丙氨酸。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。